Cal Fire said late Tuesday the fire was at zero percent containment. Highway 128 has been closed from the Monticello Dam to Pleasants Valley Road.

There were about 500 personnel from multiple agencies battling the blaze. Most of the firefight was taking place on the ground in terrain that was difficult to access, Cal Fire said. But earlier Tuesday, a DC-10 tanker was aiding the fight from the air, dropping large amounts of fire retardant.